Tyrian built!! But anormal ground noise....

[dgeMArs]

Hello!

I've built the tyrian (great PCB clone!!), which I love the sound, can't wait to use it to record things with.

That said, I have an issue, but I can't figure what I did wrong...
I'm sure I have a ground issue, like forgot to linke grounds.... I have an anormal amount of noise when guitar plugged in (and with the high level of gain of the pedal it gets annoying), which decreases when I touch the enclosure.

Could you please help me figure what I missed there ?

Thank you all.

 

[chongmagic]

ok, i'll tape them all to prevent any contact

Non I've never tried it outside the box becase of the noise that adds.
Ok, so I have to check where the grounds are on the tyrian schematic, I think you're right, cause everything makes me think it's just a ground badly wired there.....
do I have to redo all solder joints that look a bit balled up too?

It never hurts to reflow your solder joints especially if you are unsure where the problem is coming from. It sounds tedious but it really doesn't take that long.

 

[dgeMArs]

No no it's ok, I'm a baby pedal maker, I have to learn
That's how we learn
Thank you (all of you) for taking the time to teach !

 

[Barry]

ok, i'll tape them all to prevent any contact

Non I've never tried it outside the box becase of the noise that adds.
Ok, so I have to check where the grounds are on the tyrian schematic, I think you're right, cause everything makes me think it's just a ground badly wired there.....
do I have to redo all solder joints that look a bit balled up too?

Typically when they ball up it's because the solder only bonded to the lead and not the pad

 

[Zehnabo]

Hello!

I've built the tyrian (great PCB clone!!), which I love the sound, can't wait to use it to record things with.

That said, I have an issue, but I can't figure what I did wrong...
I'm sure I have a ground issue, like forgot to linke grounds.... I have an anormal amount of noise when guitar plugged in (and with the high level of gain of the pedal it gets annoying), which decreases when I touch the enclosure.

Could you please help me figure what I missed there ?

Thank you all.

Try replacing your input and output connections with shielded wire (only one end of the shield connected to ground in each wire).